Suction cleaning-nozzle



W. W. ROSE-INFIELD.

SUCTION CLEANING NOZZLE.

APPLICATION man JULY 21.1916.

k@ Patented Aug. 3,1920.

IN V ENTOR.

A4,; A'TTORNEY.

- stars is:

1. OFFICE- g wmuneiaV W. ROSENFIELD, or NEW YORK, n. Y., AssrGNoR 'ro nLEc'rRIc VACUUM CLEANER coivrranY, me., A` CORPORATION or NRW YORK.

sUc'rION CLEANING-Nozzle Specification of Letters Patent. Patned Aug. 3, 1920.

Application filed July 21, 1916. Serial No. 110,476.

ing nozzles. In order that a suction cleaning nozzle shall be efficient in taking up from a carpet or other surface to be cleaned, thread, lint, hair or other loose fibrous material, orother particles of matter which tend to adhere to thesurface being cleaned,

. it is desirable that the nozzle shall be v surface and into the nozzle.

formed or providedwith means to cause a current of air to pass over and against the It is also desirable for best results that the nozzle be provided with a 'suitable Vdisturbing device to engage and loosen the threads or other material from the surface being cleaned, such a disturbin device being most desirably located wit in the nozzle opening. For. more thorough or general cleaning of a carpet or other floor covering or other fabric of other kinds'of dirt or dust, and extraction of .its contained dust, however, it is desirable that the nozzle shall operate without causing such surface cleaning current of air, but so as to cause substantially all ofthe sucked in air to pass through the pile or body of the fabric; and to accomplish this result it should be possible for the carpet or other fabric which is drawn against the lips of the nozzle or against which 'the nozzle is pressed, to become practically sealed a ainst the nozzle lips and thereby substantially prevent the free passage of air over the surface of the carpet into the nozzle. The object of the present invention is to provide a suction cleaning nozzle which shall be adapted to operate eiciently both in pickingup threads and other material fro'rnthe surface to be cleaned, and also for cleaning by the suction of air through,- and extraction of dust from, the pile or body of the carpet or other fabric to be cleaned.'

This double object is accomplished in my present invention by providing a nozzle with' plain or continuous lips with which the carpet or other surface may make a practical seal, when cleaning by suction through the carpet is desired, and providing means, most desirably within the nozzle, adjustable into and out of operative position and adapted when in operative position to convert the nozzle into a surface draft nozzle by engaging the carpet or other surface being cleaned along the length of one or both of the nozzlelips so as to hold the continuous' nozzle lip away fromv the surface. The nozzle is also best provided with a brush or other suitable disturbing member mounted so as to be movable into and out of operative position, and most desirablyi connected with the nozzle converting means so that the brush will be in operative position when a surface draft is being secured and will be out of operative position when the nozzle is adjustedsfor thorough suction cleaning.

A full .understandingof the invention can best be given by a detailed description of an approved'embodiment of the same, and such a description will now be given in connection with the accompanying drawings which illustrate the invention as applied to a self-contained cleaner, and in which Figure 1 is a view in side elevation of a self-contained cleaner provided with a suction cleaning nozzle embodying the various.

features of-the invention.

Fig. 2 is a front elevation on a larger scale with part of the nozzle casing broken away and showing the frame comprising a notched side bar and thread disturbing meansv in operative position.

Fig. 3 is a bottom plan view of thenoz- 'zle showing the frame inoperative position.

Fig. l is a transverse sectional view of the nozzle on line 4-4 of Fig. 2.

Fig. 5 is a view on line 5-5 of Fig. 2 similar to Fig. 4, but showing the adjustable frame in inoperative position.

While the invention has as embodiedin the nozzle of a self-contained cleaner, it is to be understood that the invention is not limited to such cleaners, but that it may be applied to other suction cleaning nozzles such as nozzles of hand tools for cleaning floors, walls, furniture, etc., also that it may be applied to nozzles of self-contained cleaners of other kinds than that shown.

Referring to the drawings, Fig. 1 shows a suction cleaner which is more fully shown and described in my application for United States Patent, Serial No. 29,968, and which has a body formed by a motor casing 10 within which an electric motor is mounted, a fan casing 11 containing a centrifugal fan driven by the motor, and a nozzle 12 eX- tending downward from the front of the fan casing. The nozzle is extended transversely in the usual manner to providea comparatively long and narrow suction inlet opening or mouth between the lips of the nozzle. The body is mounted on a pair of of running wheels located adjacent and to the rear of the nozzle and a small rear wheel, and the cleaner is operated by a pivoted handle rod 16 and is provided with a porous dirt receptacle or bag 17 connected at its lower end with a discharge throat or conduit 18 extending backward from the fan casing, the upper end of the bag (which is not shown) being supported by suitable connection with the upper end of the handle rod. The running wheels are shown as positioned to support the nozzle slightly above the normal plane of the surface to be cleaned; but it will be understood that a nozzle embodying the present invention is not necessarily so used. The running wheel 15 may be adjustable for the purpose of raising or lowering the nozzle. For this purposev the wheel 15 may be mounted as shown in my application Serial No. 29,968, filed May 24, 1915, or in other suitable manner so 4as to be adjustable to predetermined upper and lower positions.

The lips of the nozzle 'are formed to vpresent a smooth continuous edge to the surface to be cleaned adapted to make contact therewith so as to substantially prevent a passage of air inward over the surface of a carpet or other fabric, such practical seal-l ing contact causing the desired How of air through the pileA or body of the fabric, for the thorough or general cleaning hereinbefore described.

For converting the nozzle to a surface draft nozzle, I provide a frame 20, mounted within the nozzle,comprising a rod or bar 21 provided with trunnions 22 to turn in spring bearings23 and 24 at the ends of the nozzle. The frame 20' carries a bar 25, eX- tending lengthwise of the nozzle lips, which may be moved into or out of operative position by rotating the frame, and when in operative position projects slightly below the plane of the nozzle lips and holds the 4or Vother material from the surface being cleaned, the frame 20 has a thread disturbing rib or member 27 which turns with the'v frame to be in operative position when the bar 25 is in operative position, and when in operative position the lower surface of the thread disturbing rib or member most desirably projects slightly below the plane of the nozzle lips. The thread disturbing rib or member should be of suitable character to frictionally engage and exert the necessary pull and drag on the threads, etc., with which the rib comes in contact, and might for this purpose be of any suitable material, but is most desirably formed by a row of suitable bristles providing a long narrow brush as shown in the drawings.

The opposite side of the bar 21 from that which carries the brush is shown as formed to provide a smooth and most desirably metal surfaced rib 28 which when the bar is turned to theposition shown in Fig. 5, lies about in the plane of the nozzle lips. This rib 28 serves a useful function in preventing somewhat the carpet being drawn up by the suction into the nozzle and so lessens the friction'between the nozzle and the carpet .and insures an easier running cleaner.

The bar 21 is mounted in its bearings 23 and 24 so that it may be moved slightly endwise therein, and at one end is provided with two oppositely extending lugs 29 and 30, one or the other of which extends into a spring pocket formed as shown in Fig. 5 in the bearingV spring 23 whenv the bar is moved endwise toward the end of the nozzle at which the bearing spring 23 is located, that is when thebar is in its normal endwise f position as shown in Fig. 3. By endwise movement of the bar toward the other end of the nozzle the lug 29 or 30 will be drawn out of the pocket in the bearing spring so as to permit the bar to be turned to a position in which the brush is in its operative position as shown in Fig. 4, or lin which the brush is in its inoperative position and the smooth face of the bar lies in the plane of the nozzle lips as shown in Fig. 5. When turned to either of these positions the bar, by slight endwise movement to carry the lug 29 or 30into the pocket of the bearin spring 23, will be locked against turning. lhe bar may be manipulated by taking hold of it directly or may be provided with a suitable finger piece, such as the finger piece 31, carried by a pin which passes through on opening in the end of the nozzle and extends into v and is secured in the end of the frame 20.

shown in the By pulling out on the finger piece the frame 2O will be shifted endwise to the position in which it may be turned and then when it has been turned to the desired position it will be moved back and locked against turning by simply pulling inward on the finger piece. The finger piece pin is detachably secured in the end of the frame 20 so that it may be removed to permit the frame to be removed from the nozzle, such removal of the frame being effected by simply pulling it out of its spring bearings When used with the brush 27 and the bar 25 in operative position, the cleaner will usually be used with the running wheel l5 adjusted to position the nozzle in its uppermost position or position farthest away from the normal plane of the carpet; but for thin carpets or floor coverings itmay some times be desirable to have the cleaner adjusted to bring the nozzle into its lower position when using the brush. vVhen the brush is turned up to its inoperative position the cleaner will usually be used with the nozzle in its upper position for thick carpets and its lower position for thin carpets or for cleaning uncarpeted or uncovered surfaces.

It will be understood that the invention is not to be limited to the exact construction, arrangement" and combination of parts as drawings and to which the foregoing description has been largely confined, but that it includes changes and modifications thereof within the claims.

What is claimed is:

1. The combination with a suction cleaning nozzle having lips formed to provide a seal by contact with the surface wise of the nozzle lips and movable into and out of operative position close to one of the nozzle lips to permit -a surface cleaning current of air to pass beneath said lip when inoperative position, and means for locking said bar in operative position.

2. The combination with a suction cleaning nozzle having lips formed to provide a seal by` contact with the surface to be cleaned, of a notched bar extending lengthwise of the nozzle lips mounted within the nozzle and adjustable into and out of operative position close to one of the nozzle lips to permit a surface cleaning current of air to pass beneath said lip when in operative position, and means for locking said bar in operative position.

3. The combination with a suction cleaning nozzle having continuous lips formed to contact with the surface to be cleaned, of a frame pivotally mounted within the nozzle, said frame having a notched bar extending lengthwise of the nozzle lips to be cleaned, of a notched bar extending lengthadapted when in operative position to provide passages for a surface cleaning current of air, turning movement of the frame serving to move said bar into and out of operative position.

4l. rlhe combination with a suction cleaning nozzle, of a thread disturbing member mounted within the mouth of the nozzle and rotatably adjustable into and out of operative position, said member projecting slightly beyond the plane of the nozzle lips when in operative position, and a notched bar extending lengthwise of and adjacent to one of the nozzle lips when in operative position to prevent close contact between the nozzle lip and the surface to be cleaned and to permit a surface cleaning current of air to pass beneath the nozzle lip when the thread disturbing member is in operative position.

5. The combination with a suctioncleaning nozzle, of a frame mounted within the mouth of the nozzle and supported by means permitting a turning adjustment of the frame, thread disturbing means extending from one side of the frame and a side bar extending from the frame to coperate with one of the nozzle lips to permit a surface cleaning current of air to pass beneath the nozzle lip.

6. The combination with a suction cleaning nozzle, of a bar mounted within the mouth of the nozzle and supported by means permitting a turning adjustment of the bar, thread disturbing means extending from one side of the bar and a notched side bar mounted to turn with the first mentioned bar.

7. The combination with a suction cleaning nozzle having continuous lips formed to contact with the surface to be cleaned, of a frame mounted within the nozzle carrying a thread disturbing member and adjustable to move said member into and out of operative position, and a notched member on said frame adapted to coperate with one of the lips of the nozzle to provide passages for a surface cleaning current of air when the thread disturbing member is in operative position.

8. The combination with a suction cleaning nozzle having lips formed to provide a seal with the surface to be cleaned, of a bar carrying a thread disturbing member mounted within the nozzle to rotate to move said member into and out of operating position, and movable means extending lengthwise of the nozzle lips for coperating with the lip of the nozze to providepassages for a surface cleaning current when the thread disturbing member is in operative position.

9. The combination with a suction cleaning nozzle having lips formed to contact with the surface to be cleaned, of a thread disturbing member mounted for rotation within the mouth of the nozzle and adjustable into and out of operating position, and a notched bar movable with the thread disturbing member to provide passages for a surface cleaning current of air beneath the nozzle lip when the thread disturbing member is in operative position.

10. The combination with a suction cleaning nozzle, of a thread disturbing member adjustable into and out of operative position within the mouth of the nozzle and projecting slightly beyond the plane of the nozzle lips when in operative position, a notched member movable with said thread disturb ing member and coperating with one of the nozzle lips to provide passages for a surface cleaning current of air when the thread disturbing member is in operative position, and a smooth surfaced rib extending within the mouth of the nozzle and substantially in the plane of the nozzle lips when the thread disturbing member is in its inoperative position.

11.. The combination with a suction cleaning nozzle, of a notched bar formed to provide a surface cleaning current of air mounted within the mouth of the nozzle to turn and capable of slight endwise movement, positioning means for holding the bar against turning movement when in one position of its endwise adjustment and permitting the bar to turn when in another position of its endwise adjustment.

12. The combination with a suction cleaning nozzle, of' a bar mounted within the mouth of the nozzle and supported by means permitting a turning adjustment of the bar, a notched member carried by said bar and adapted to project slightly beyond the plane of the nozzle lips when the bar is in one position and to be retracted within the nozzle mouth when the bar is turned to another position, and means outside the nozzle for turning said bar.

13. The'combination with a suction cleaning nozzle, of a member mounted within the mouth of the nozzle and carrying a thread disturbing Amember adapted to project' slightly beyond the plane of the nozzle lips, and a bar carried by said member extending lengthwise of the nozzle lips for holding a nozzle lip away from the surface being cleaned.

11i/"An attachment for suction cleaning.

a nozzle lip away from the surface being cleaned.

15. An attachment for suction cleaning nozzles, p comprising a notched bar and a thread disturbing member, both adapted to project slightly beyond the plane of the lips of the nozzle.

16. The combination with a suction cleaning nozzle having lips formed to provide a seal with the surface to be cleaned, of a notched member rotatably movable into and out of operative position mounted within the nozzle and adapted when in operative position to break the seal at one lip of the nozzle to permit a surface cleaning current of air to ow beneath the lip.

17. The combination with a suction cleaning nozzle having lips formed to provide a seal with 'the surface to be cleaned, of a notched member movable into and out of operative position rotatably mounted within the nozzle and carrying thread disturbing means, and adapted when in operative position to break the seal at one lip of the nozzle to-permit a surface cleaning current of air to fiow beneath the lip.

18. The combination with a suction cleaning nozzle having lips formed to provide a seal with the surface to be cleaned, of a notched member movable into and out of operative position rotatably mounted within the nozzle and carrying a thread disturbing means, and adapted when moved into operative position to provide passages for a surface cleaning current of air beneath the nozzle lip and to place the thread disturbing means in operative position.

19. The combination with a suction cleaning nozzle, of a frame rotatably mounted within the nozzle and extending longitudinally thereof and having a brush and a notched side bar extending longitudinally of the frame.

20. The combination with a suction cleaning nozzle, of a frame rotatably mounted within the nozzle and having a brush and a notched side bar adapted to project slightly beyond the plane of the nozzle lips when in operative position.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

WILLIAM W'. ROSENFIELD.

Witnesses:

F. F. SoLINGER, R. Z. MoCoLLocH. 

